* {
  margin: 0;
  padding: 0;
  list-style: none; }

body {
  width: 100%;
  font-size: 10px;
  color: "$sc"; }

#wrap {
  width: 100%; }

header {
  width: 100%;
  height: 30px;
  background-color: #ccc;
  line-height: 30px; }
  header .nav {
    width: 80%;
    margin: auto; }
    header .nav span {
      margin: auto 2px; }
    header .nav a {
      color: black;
      text-decoration: none; }
      header .nav a:hover {
        text-decoration: underline; }
    header .nav .first {
      float: left; }
    header .nav .second {
      float: right; }

#logo {
  width: 80%;
  margin: auto;
  height: 80px;
  line-height: 80px;
  font-size: 12px; }
  #logo img {
    margin-top: 30px;
    height: 35px; }
  #logo ul {
    display: inline-block;
    float: right; }
    #logo ul li {
      float: left; }
      #logo ul li span {
        padding: 10px;
        height: 22px;
        outline: none; }
        #logo ul li span:hover {
          background: red; }

#lunbo {
  width: 80%;
  margin: auto; }

#tu {
  width: 100%;
  background: #ccc; }
  #tu #tu1 {
    width: 80%;
    margin: auto;
    display: flex; }
    #tu #tu1 span {
      width: 25%;
      align-items: center; }
      #tu #tu1 span img {
        width: 100%; }
  #tu p {
    width: 80%;
    margin: auto;
    font-size: 20px;
    height: 60px;
    padding: 30px; }
    #tu p span {
      float: right;
      font-size: 10px; }
  #tu #free {
    width: 80%;
    margin: auto;
    background: white;
    display: flex;
    flex-wrap: nowrap; }
    #tu #free #free1 {
      width: 200px; }
    #tu #free #free2 {
      display: flex;
      float: left;
      width: 100%; }
      #tu #free #free2 dl {
        width: 15%;
        flex-wrap: nowrap;
        align-items: center;
        justify-content: space-around;
        margin-top: 80px;
        margin-left: 30px; }
        #tu #free #free2 dl dt {
          width: 80%;
          margin: auto; }
          #tu #free #free2 dl dt img {
            width: 100%; }

#sou {
  width: 80%;
  display: flex;
  flex-wrap: nowrap;
  margin: 40px auto; }
  #sou select {
    width: 100px;
    display: inline-block;
    height: 45px;
    border-color: green; }
  #sou input {
    margin-left: 200px;
    width: 400px;
    height: 45px;
    border-color: green; }
  #sou button {
    width: 105px;
    background: green;
    height: 45px;
    border-color: green; }
